Home / 18,711,501.60-28,067,252.40-8,633,805.60

Finding the Fourth Proportional to 18,711,501.60, 28,067,252.40 and 8,633,805.60

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Solution

The fourth proportional to 18,711,501.60, 28,067,252.40 and 8,633,805.60 is: 12,950,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,501.60 : 28,067,252.40 = 8,633,805.60 : x
  2. Step 2: Convert to fraction form
    18,711,501.60/28,067,252.40 = 8,633,805.60/x
  3. Step 3: Cross multiply
    18,711,501.60x = 28,067,252.40 × 8,633,805.60
  4. Step 4: Simplify right side
    18,711,501.60x = 242,327,200,947,733.41
  5. Step 5: Solve for x
    x = 242,327,200,947,733.41/18,711,501.60
  6. Step 6: Final answer
    x = 12,950,708.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.